Finding the Fourth Proportional to 216,876.15, 299,281.00 and 120,078.08
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Solution
The fourth proportional to 216,876.15, 299,281.00 and 120,078.08 is: 165,703.28
Step by Step Solution
- Step 1: Write the proportion equation
216,876.15 : 299,281.00 = 120,078.08 : x - Step 2: Convert to fraction form
216,876.15/299,281.00 = 120,078.08/x - Step 3: Cross multiply
216,876.15x = 299,281.00 × 120,078.08 - Step 4: Simplify right side
216,876.15x = 35,937,089,011.64 - Step 5: Solve for x
x = 35,937,089,011.64/216,876.15 - Step 6: Final answer
x = 165,703.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.